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112L > Lesson 5 | Midterm > Flashcards

Lesson 5 | Midterm Flashcards

INTEGUMENTARY SYSTEM

1
Q

Other term for the skin

A

Cutaneous layer

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2
Q

Principal parts of the skin

A

Epidermis (Superficial)
Dermis (Deep)

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3
Q

How many layers does the epidermis have?

A

Epidermis usually has 4 layers, but under thick skins, STRATUM LUCIDUM is present making it 5

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4
Q

Layers of the epidermis

A
  • Stratum Corneum
  • Stratum Lucidum
  • Stratum Granulosum/ Granular Layer
  • Stratum Spinosum/ Spiny Layer
  • Stratum Basale
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5
Q

2 divisions of the dermis

A
  • Papillary region
  • Reticular region
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6
Q

Accessory structures of the skin

A
  • Hair
  • Skin glands
  • Nail
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7
Q

Hair is present on most skin surfaces except for —

A

palms and plantar surfaces of the feet

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8
Q

Types of hair

A
  • Vellus hair
  • Terminal hair
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9
Q

Differentiate vellus and terminal hair in terms of description

A

VELLUS HAIR: short, fine, pale hair; not very visible

TERMINAL HAIR: long, coarse, heavily pigmented hairs; obviously seen

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10
Q

Differentiate vellus and terminal hair in terms of location

A

VELLUS: All parts of the body except for the scalp, eyebrows, and eyelashes

TERMINAL: Located at the scalp, eyebrows, and eyelashes

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11
Q

Types of skin glands

A
  1. Sebaceous (oil) glands
  2. Sudoriferous
  3. Ceruminous glands
  4. Mammary glands
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12
Q

Its secreting proteins lie in the dermis and usually open into the neck of a hair follicle

A

Sebaceous (oil) glands

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13
Q

The secreting proteins of sebaceous glands lie in the (1) and usually open into the neck of a (2)

A
  1. dermis
  2. hair follicle
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14
Q

What does the sebaceous gland secrete?

A

Sebum

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15
Q

Function of the sebum

A

Oily substance that functions in coating the hair, keeping it from drying (moisture)

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16
Q

Sudoriferous releases (1) into (2) or onto the (3) through the opening

A
  1. sweat/ perspiration
  2. hair follicles
  3. skin surface
17
Q

Modified sweat glands in the external ear that produce a waxy lubricating secretion

A

Ceruminous glands

18
Q

What do ceruminous glands release?

A

Ear wax

19
Q

Function of the ear wax

A

Protects the ear from foreign substances

20
Q

Hard plates of dead cells that form a clear, solid covering

A

Nails

21
Q

Parts of the nail

A
  1. Nail body/ Nail plate
  2. Free edge
  3. Nail root
22
Q
  • Has a pink tinge as a result of blood vessels underneath
  • Clearly visible
A

Nail body/ Nail plate

23
Q
  • May extend past the distal end of the (?)
  • No underlying blood vessel is found underneath it thus, a pinkish tinge is absent
A

Free edge

24
Q

Buried in a fold of skin

A

Nail root

25
Q

Crescent-shaped area located at the base of the nail

A

Lunula

26
Q

Description of the nail matrix

A

Proximal portion deep to the nail, not part od the nail

27
Q

Function of the nail matrix

A

nail growth

28
Q

2 skin types

A
  1. Thin (Hairy) Skin
  2. Thick (Hairless) Skin
29
Q

Distribution of thin and thick skin

A

Thin: All parts of the body except palm and soles

Thick: Palms and soles

30
Q

Differentiate thin and thick skin in terms of hair follicles

A

HAIR FOLLICLES
Thin: Present
Thick: Absent

31
Q

Differentiate thin and thick skin in terms of sebaceous glands

A

SEBACEOUS GLANDS
Thin: Present
Thick: Absent
SUDORIFEROUS GLANDS

32
Q

Differentiate thin and thick skin in terms of sudoriferous glands

A

SUDORIFEROUS GLANDS
Thin: Fewer
Thick: Most numerous

33
Q

Functions of the integumentary system

A
  1. Thermoregulation
  2. Stores blood
  3. Protects the body from the external environment
  4. — cutaneous sensation
  5. Synthesizes vitamin D

112L (9 decks)

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